Automobile-heating appliance.



O. A. PRESCOTT.

AUTOMOBILE HEATING APPLIANCE. APPLICATION FILED JUNE17, 1909. 957,253.

Patented May 10, 1910.

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attozwuy G. A. PRESCOTT. AUTOMOBILE HEATING APPLIANCE.

APPLICATION FILED JUNE 17, 1909.

Patented May 10, 1910.

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Parana carton CHARLES A. PRESCOTT, OF BROOKLYN, NEW YORK.

AUTOMOZBVIIQE-HEATING APPLIANCE.

To all whom it may concern:

Be it known that I, CHARLES A. Pnnsco'r'r, a citizen of the UnitedStates, residing at Brooklyn, in the county of Kings and State of NewYork, have invented certain new and useful Improvements inAutomobile-Heating Appliances, of which the following is aspecification.

My invention relates to improvements in automobile heating devices, andit consists in the constructions, combinations and arrangements hereindescribed and claimed.

An object of my invention is to provide a simple and compact heatingattachment adapted to be conveniently employed with the various standardtypes of automobiles.

A further object of my invention is to provide an improved means forutilizing the heat of the motor exhaust for efficiently heating anautomobile in which the operation of the'heating means will bepositively controlled by the 'motor. A furtherlbbject ofv my inventionis to provide an improved device for heating an automobile by a forcedcurrent of air, and wlnch 1s provided with efficient means for screeningand entrapping all (lust and extrancous matter from the air. I

In the accompanying drawings, forming a part of this application and inwhich similar reference numerals indicate correspondmg parts in theseveral views: Figure 1 is a side elevation, partly in section,illustrating one embodiment of my invention applied to a standard typeof automobile; Fig. 2 is a detail section, onv a larger scale, of theflaring open end of the air pipe shown in Fig. 1; Fig. 3 is a sideelevatlon, of a modified construction with the air pipe shown insection; Fig. 4 is a section, on a larger scale, taken on the line H ofFig. 3; Fig. 5 is a plan View,

partly broken away, showing one of the registers'and the corrugated dustpan slidably mounted therebeneath, and Fig. 6 is a section on the line6-6 of Fig. 5.

Figs. 1 and 2 ofthe drawings illustrate an automobile having the usualform of limou- 'sine body 1 and provided with a multiple" cylinder,internal combustion engine 2; a common exhaust conduit 3 of the severalengine cylinders leading to a muffler or other desired point. An airpipe 4 surrounds the exhaust conduit 3 and extends through the exhaustmanifold 5 of the several engine cylinders; exhaust passages 6 extendthrough said air pipe tothecommon exhaust conduit Specification ofLetters Patent.

\ Application filed June 17, 1909.

Patented May 10, 1910.

Serial No. 502,788.

, 3. Any desired number of air tubes 7 vmay be extended through theexhaust conduit 3 with their respective ends in free communication withthe air pipe 4; said tubes being provided with flaring forward ends 8 tofacilitate the free entrance ofair thereinto. The forward end of the airpipe/s is enlarged at 9 to facilitate the entrance of air thereto andfor receivinga fan 10 secured to a spindle 11. I

A spider 12 supports a screen 13 across the open end of the air pipe andcarries a central hub 14 containing a double row of ball bearings 15. Adouble cone 16 is secured to the fan spindle for engagement by thedouble ball bearings 15 for permitting axial movement of said spindle;the inner end of said and on the stub sha t19 of the usualcylinder-cooling fan.

Independent passages 20and 21 lead from the air pipe 4 to any desiredportions of the automobile body; as to the closed passengerscompartment-and the chaufieurs section of the car. The outlets of suchpassages 20 and 21 are controlled by any form of hot-air registerprovided with the usual series of swinging slats 22 covered by aprotecting grating 23.

A corrugated dust tray 24 is horizontally mounted beneath thecontrolling register of each outlet passage, and provided with series ofperforations 25 along the upper ridges of the corrugations; saidcorrugated trays being slidably mounted to permit theirconvenient'withdrawal for removing the dust accumulating in thedepressions on the upper surfaces thereof.

In the operation of my invention, the fan 10 will be positively drivenby the automobile engine to force a current of air through the pipe 4 ata velocity proportionate to the speed of said engine; the current of airbeing efficiently heated by passing in intiits passage through theregisters into the car body.

It will be noted that the entrance of the air pipe is so arranged thatthe usual cylinder-cooling fan will force air thereto, and that theentire construction is adapted to insure a strong and positivecirculation of air through the air pipe.

Figs. 3 and 4: illustrate a modification, in which the air pipe 26extends through the exhaust manifold 5 about the common exhaust conduit3 in the manner'described in reference to Figs. 1 and 2. The enlargedforward end 27 of said air pipe is shielded by the screen 28, and isshown suitably positioned for receiving air forced rearwardly by theusual cylinder-cooling fan 29. A suction and force fan 30 is mounted inthe air pipe 26, and driven in any convenient manner from the automobilemotor. I have shown such fan driven by a flexible shaft 31 connected toa stub shaft 32 belted to the main engine shaft. The radiators and dustpans of these modifications are exactly similar to those previouslydescribed, and need not further be referred to.

I have illustrated and described preferred and satisfactoryconstructions, and changes could be made within the spirit and scope ofmy invention.

Having described my invention, what I claim as new and desire to secureby Letters-Patent is:

'1. In an automobile provided with the usual body and internalcombustion engine, the combination of an exhaust conduit for suchengine, an air pipe surrounding said conduit, means for placing saidpipe'in communication with the automobile body, a tube extending throughsaid exhaust conduit with its respectiveends in free communication withsaid pipe, and means for forcing air through said pipe and tube,substantially as described.

2. In an automobile provided with the usual body and internal combustionengine, the combination of an exhaust conduit for such engine, an airpipe surrounding said conduit, means for placing said pipe incommunication with the automobile body, a tube extending through saidexhaust conduit with-its respective ends in free communication with saidpipe, a fan for forcing air through said pipe and tube, and connectionsto the engine for driving said fan, substantially as described.

, 3. In an automobile provided with the usual body and internalcombustion engine, the combination of an exhaust conduit for suchengine, an air pipe surrounding said conduit and provided with aflaring, open, forward end, a screen covering such open pipe end, a tubeextending through-said exhaust conduit with its respective ends in freecommunication with said air pipe,

means for placing said air pipe 1n communication with the automobilebody, and means for forcing air through said pipe and tube,substantially as described.

4. In an automobile provided with the usual body and multiple-cylinderinternal combustion engine, the combination of a common exhaust conduitfor the several engine cylinders, an air pipe surroundingsaid conduit,means for placing said pipe in communication with the several enginecylinders being provided with exhaust passages extending through saidair pipe to said common conduit,

a '-tube extending through said conduit with its respective ends in freecommunication with said air pipe, and means for forcing air through sa1dpipe and tube, substantially as described.

In testimony whereof I afiix my signature in presence of two witnesses,-

CHARLES A. PRESCOTT. Witnesses:

EUGENE L. PERRY, FREEMA D. PRESCO'I'I.

the automobile body,

